Cup rack



Oct. 21, 1952 I J. 6EisNER ,6 4,6

RACK Filed Feb. 24, 1950 4 sheets-sheet 1 7zmz pmm r ATTORNEY Oct. 21, 1952 J. w; WEIsTNER '4 Sheets-Sheet 2 Filed Feb. 24, 1950 INVENTORX I Ill/(l/ll,

- day/v M, M275 #1:

ATTORNEY Oct. 21, 195 2 J W. WEISNER 2, ,5

cuP RACK Filed Feb. 24, 1950 I 4 Sheets-Sheet 3 96 INVENTOR damv- 14 We mm? BY I Wmmflm *Wm ATTORNEY Oct. 21, 1952 J. w. WEISNER 2,614,699

' CUP RACK Filed Feb. 24, 1950 4 Sheets-Sheet 4 1' INVENTOR 8 67 dew/v M WE/S/VEH [:23 ATTORNEY Patented Oct. 21; 1952 -LQUNITE'D ESTATES 'FBATENT (OFFICE i W 52,614,699 y l-LGUP RACK u rj' tJronn W..Weisne1, Highland spmi 'gwa, Application February 24,1950, Serial No.'145,927

3 Claims.

" L'Ihi's invention 1 relates:v to. :di'sh': washing zma '-"'-'"chines;- and more particularly. to: an;:electrically J controlled automatic dish washingxmachine.

A main object of the'invention is to; provide a novel and improved automatichdish washing machine which is very simple in construction, which is automatic in operation; andwhich may be employed in locations where a hot-waterzsu'pply ipe line "is not available. an improved automaticdishwashmg imachine which involves relatively few' parts, which :is-in- -"%expensive*to-manufactura'which is sturdy incon- "struction,' *which includes- :impro ve'd rack "means *-"-for' supportingthe various dishes and utensils to *be washed; and which is providedwith automatic electrical-cycling means for controlling the in- ":Furtherbbjects"and advantages o'f the inven- ;:tion will become apparent from the following der scription and claims; and from-the accompanying'drawingsj'wherein: v

Figure '1 .is a side'elevational view of animproved" automatic dishwashing ;m'achine---con- .structed' in "accordance with the present' inven- J'tion;

.Figure.9 .is aside elevational" view .ofua portion of the lower dish supporting element of the ma- -echinerand showing a dish-supported in asupportiingwbracket attached tothe lower supporting .ele-

.gment'ofthe machine; l

.iEigure lflisa plan'view of the.-dish.supporting rack structure shown in Figure 9; v Figure 11 is a perspective lviewl of thee-utensil i supporting rack, employed in the 'ni'a'chine ofFig- .1'ui'e1; w

further objectof the invention is to :provideltake' and exhaust of water duringa-dish (washingl is a" topplan view or themachine of 'j 'fFigui-e :1, with the -top"cover renrioved;

- 12 pFigurelZisa schematic wiring diagram showing the electrical connections of the machine; on :Flgure 131s; anenlarged side elevational detail view, of the automatic stop switch employed to der energize the driving motor of the machine at the i's-BIICI of a,dishawashing cycle.

.wtFigure 14 is any'end-elevational viewof the cup shape and are suitablyinclinedwsoa as" toscoop v water and propel the water'upwardly whenshaft I1 is rotated. I The lower end of shaft l'ly'is suit- -ab1yjournaled to the bottom wall l2 and carries asbevel gear lflr Designated at is an electric motor. A-bevelgear 2| is secured on one end of the-shaft of said'motor, said bevel gear 2| being mesh with the bevel =gearl9,' whereby shaft "is drivingly connected to the motor shaft; The l *other end of-the' motor-shaft'carriesa pulley- '22. 1 Designated at '23 is a discharge pump. l-he driving shaft 24) of said pu Carries pulley 25 .mi h is o p'led to pulley 22 by a-be'lt 26'. The 1 intake passageof pump 23 is connected'bya flex- 'iblefconduiti21 to a discharge elbow .fitting 2s connected'to the lower end of'the depressedwall ,l v p'ortion I5. ,Elbowfitting 28includes a normally -closedvalve 2-9 whichis operated by a solenoid 30,; valve 29 being opened-when solenoids!) i s en-' -.;ergized. "The outlet-;passage-of pump 23:;has a :dischargeconduit 3| connectedv 'theretoh 1 Secured to one side of hOusingf'H' is azwater vreservoirf 32," saidureservoir being suitably insu- 4 lated.:againstthe escape of heat-by an insulating a jacket-Blend being-provided with a-rem'ovable -top--cover 34: Securedinthe lower portion of reservoir 32 is --a; conventional*electrical heating *element 35; said element being [providedfwith a suitable ,thermostaticswitclr to ;regulate" the temperature of the water inreservoir'. iii. "wall; between, chamber, l4; andgres'ervoi is iform'e'd withl an opening in. which seatedizthe disc 136 of a: valve," 'whosje jstem, isflconnected 'td- Ithe ,51 plunger of a" solenoid 3 1, th'el disc 36; being norsupporting rack oft-Figure 8, but with the cup in mally biased to closed position and being moved to open position when solenoid 31 is energized.

The lower portion of reservoir 32 comprises a housing 38 in which is mounted a control apparatus for regulating the time of operation of the motor 26 and the energization of the valve solenoids 35 and 31. Designated at, 39 is a shaft journaled in a bracket 46 secured to bottom wall 12,.said shaft carrying a bevel gear 4! which is in mesh with bevel gear 13. Secured to shaft 39 is a flexible shaft 42 which extends'into housing 38 and is connected to the input shaft of a speed reducing unit 43 mounted in said housing. The output shaft of unit 43 carries a worm 44 which is in mesh with a worm gear 45 carried on a vertical shaft 46 'journaled in housing 38. Mounted in said housing concentrically with shaft 46, as shown in Figure 12, is a flat conductor ring 41. Designated at 48, 49 and 50 are the segments of an outer, upstanding ring, the ends of said segments being insulated from each other by short insulating spacersl.

As shown in Figure cured to shaft 46-, said arm being of insulating material and'having secured thereto a conductive extension 53, said extension being provided with a resilient conductive tip 54 which engages the upstanding ring segments 50, 49 and 4Bsuccessively as the arm 52 rotates counterclockwise, as viewed in Figure 12. Secured to extension 53 gized. The motor supply circuit will also be open since springiarm 64 will be flexed away from contact 65. This represents the starting position of the machine.

' switch 6!.

To place the machine in operation, a supply of lukewarm water is first placed in the dish washing chamber 14 and in the water reservoir 32. The heater 35is energized by closing the switch which controls its electrical circuit. Switch 69 is then closed, energizing the motor through a circuit comprising line wire 51, wire 59, switch 63, the motor winding, wire 53 and line wire 56.

' tor 53, tip 54, segment 53, wire 12, wire 1|, the

12, a radial arm 52 is seis a conductive brush 55 which continuously en- 7 gagesthe fiat ring 41. Designated at 56 and 51 are the respective power supply wires. Connected to supply wire 56 is a wire 58 which is connected to one terminal of the motor 20. The wire 56 is connected to the ring 41. The other terminal of the motor 20 is connected to supply wire 51 by a wire 55 which includes a normally open push button switch 60. Connected in parallel with switch 60 is a normally closed switch 61. Switch 61 comprises an'upstanding bracket 62 located adjacent the gap between segments 48 and and carrying a block 63 of insulating'material. Secured to the upper portion of block63 is a depending spring arm 64 which normally engages a contact 65 secured to the lower portion of block 63. A wire 66 connects spring arm 64 to wire 59. on one side of switch 60. A wire 61 connects solenoid winding, and wire 51. The drain valve 29 is thus opened, and the lukewarm water gradually drains fromv the'dish washing chamber during the first phase of operation of the agitating blades. Valve 29 closes when tip 54 leaves segment 56 and engages segment 49. This energizes solenoid 31 through a circuit comprising line wire 51, the solenoid winding, wire 10, segment 49, tip 54, conductor 53,.ring 41 and line wire 56. The energization of solenoid 31 opens the hot water valve disc 36, admitting hot water intothe chamber 14 during the-second phase of operation of the agitating blades. Valve disc 36 closes when tip 54 leaves segment 49, de-energizing solenoid 31, and engages segment 48. Solenoid 30 again becomes energized through a circuit comprising line wire 56, ring 41, conductor 53, tip 54, segment 48, wire H, thesolenoid winding, and, line Wire 51. This opensvalve 2 9, allowing'the rinse water to drain during the third phase of operation of the agitator blades. As sleeve 69 engages spring arm 64, the motor circuit is opened at contact 65 and the tip 54 stops in engagement with the insulating spacer 51 between segments. 4B.and

I 50, whereby the solenoidf30 becomes de-energized a terminal 68 on switch 6| to wire 59 on the other side of switch 66. Terminal 68 is connected internally of block 63 to the contact 65. The lower end of sprin arm 64 is located in the path of movement of'an insulating sleeve 63 carried in extension 53. The sleeve 69 is' arranged to engage spring arm 64 and flex arm 64 outwardly, as shown in dotted view in Figure 13, thereby opening the motor supply wire 59 at the .end of a cycle of operations. When the arm 52 is caused to rotate further, as by manually closing switch 66 to thereby energize the motor, the sleeve 69 slips past the lower end of springa-rm 64, allowing said spring arm to return into engagement with contact 65.

As shown in Figure 12, one terminal of each of the solenoids 30 and 31 is connected to line wire 51. The other terminal of solenoid 31 is connected by a wire 10 to the ring segment 49. The other terminal of solenoid 30 is connected by respective wires 11 and 12 to the respective ring. segments 43 and 50.

It will be seen from Figure 12 that the spring arm 64 is located inwardly adjacent the spacing insulator 5| between the ends of the segments 48 and 50. At the end of a cycle of operations, the

, tip 54 will therefore engage said insulator 5| and neither of the solenoids 36 and 31 will be enerand the cycle ofoperation is completed.

During the initial phase of the. cycle, when lukewarm water-is present in chamber 14, the agitator blades l3, l8 splash water upwardly in a vigorous manner, and cause the dishes and utensils in the upper portion of the chamber to be cleansed of dirt. During the second phase of the cycle, the hot ri'n'se water is admitted into the chamber 14. During the third and final phase of the cycle, the valve 29 is opened to drain the rinsewater from the chamber 14, allowin the agitator blades to splash the clean water upwardly to thoroughly'rinse the dishes and utensils during this period,

The cycle may be repeated one or more times by merely momentarily closing the pushbutton switch 60 at the end of each cycle.

. I It will be noted that any rinse water remaining from a preceding cycle may ,be used for the initial phase of a succeeding cycle. This provides eificient utilization of the water and mini mizes the necessity of replenishing water in reservoir 32.

The drain solenoid 30 may be'energized independently to drain the final remaining rinse water, if so desired, by means of a manually operated switch 13 connected between line wire 56 and wire 11.,

Referring now to Figure 3, it will be seen that the blades 18 and" I8 are mounted on a transverse supporting rod 14 secured to the top endv of bars 85, 89.

eugswithf respectside' flanges- 'ile Theblades' I8 are larger in "*"widtH than the blades l- 8',"and the flanges TI diverge outwardly with respect to the adjacent blades I8. Said blades I8f are inclined with respect to the horizontaLas shown in Figure 4. I Theh'ousing II is provided at its intermediate portion with a plurality of inwardly projecting lugs I8 on which is supported the partitionor circular wire grille 79, said grille having a peripheral circular frame 80 fabricated from metal tubing. Designated at 8I is an auxiliary or rectangular grille provided with dependin legs 82 which are secured to the grille I9 at one side thereof, as shown in Figure 4. The grille BI is adapted to I support pieces of flatware in vertical positions, as

shown in Figure 4, said pieces being inserted in the meshes of the grille. Secured to the grille I9 are a plurality of cup racks 83, shown in detail in .Figure 8. Each cup rack 83 comprises a rectangular wire frame 84 to the sides of which are secured spaced rearwardly, offset, longitudinal Secured to the ends of the upper bar 86 are inclined struts 81, 8'! supporting frame 84 in an inclined position. Secured to the bottom longitudinal element 88 of frame 84 are spaced, upstanding rods 89. Secured to the, top end of each rod 89 is a cross bar 9| having upturned ends 92, 92. Adjustably or movably secured to the upper portions of the side elements of frame 84 are sleeves 93, 93 carrying the top arm 941.

element of the frame 84 by means of a set screw 93a. The cups are supported in inverted positions on the cross bars 9| with the bottom edges of the cups abutting the top arms 94 and 95. .As

shown in Figure 14, a cup C has its top edge supported on the cross arm 9| and has its bottom edge contacted by the arm 95 with the side of the cup'contacted by the arm 94.

Secured concentrically on grille I9 is an arcuate bar member 96 to which are secured a plurality of outwardly extending dish racks 91. Each dish rack 91 comprises an arcuately bent, inwardly offset, U-shaped wire loop 98, as shown in Figures 9 and 10, the arms of loop 98 being connected by spaced U-shaped, small loops 99, whereby a dish I 00 may be supported in an upstanding position in the manner clearly shown in Figure 9. As further shown in Figure 4, the dishes are supported in substantially vertical, radial planes around the vertical axis of housing I I.

Designated at IOI is a circular shelf or top grille employed for supporting utensils in the upper portion of the housing I I. Secured to the periphery of grille IOI are a plurality of depending legs I02 having inwardly offset bottom ends I03 engaging over the circular frame 80 of the lower grille I9 in the manner shown in Figure 4, whereb to-be fixedly. positioned] aiponsav suppc'irting.v grille .:and comprising anupstanding" fram'e'liri'luding I 6 While a specific'embodim'ent of an improved automatic dish washingflmachine has been disclosed in the foregoing descri 'otion, itwill be understood that various modifications within the spirit of the invention-may occur to those skilled in the art. Therefore, it isintended that nollimif i tatio'ns be placedon theinvention except-as deiflfine'd by .the scope of. the appended claims:

.1'. Inv a dish washing machine, a rack-adapted a longitudinal bottom -element andi. spaced; side elementslrising. from said :bottom element; a? plurality of upstanding rods arranged in longitudinal spacedrelation along and spaced from one side of said frame and each having the lower end fixed to the bottom element of said frame, a cross arm fixed on the upper end of each of said rods, at least a pair of spaced longitudinally extendingarms cooperating with said cross arms forsupporting cups in inverted positions and connected to the side elements of said frame for movement toward and away from said cross arms, and means for'holding said pair of arms in any select position of their movement.

2. In a dish'washing machine, a rack adapted to be fixedly positioned upon a supporting grille and comprising an upstanding frame including a longitudinal bottom element and spaced side elements rising from said bottom element, a plurality of upstanding rods arranged in longitudinal spaced relation along and spaced from one sideof said frame and each having the lower end fixed to the bottom element of said frame, a cross arm fixed on the upper end of each of said rods, at least a pair of spaced longitudinally extending arms cooperating with said cross arm for supporting cups in inverted positions and connected to the side. elements of said frame for movement toward and away from said cross arms,

means for holding said pair of arms in any select position of their movement, a bar extending between the side elements of said frame above and spaced from the bottom element of said frame and fixed to the side elements of said frame, and upstanding struts each having the upper end secured to said bar and having the lower end adapted to rest upon the supporting grille.

3. In a dish washing machine, a rack adapted to be fixedly positioned upon a supporting grille and comprising an upstanding frame including a longitudinal bottom element and spaced side elements rising from said bottom element, a plurality of upstanding rods arranged in longitudi- 1 nal spaced relation along and spaced from one side of said frame and each having the lower end fixed to the bottom element of said frame, a cross arm fixed on the upper end of each of said rods, at least a pair of spaced longitudinally extending arms cooperating with said cross arms for supporting cups in inverted positions, a sleeve carried by each of the adjacent ends of said pair of arms and 'slidably receiving the upper end portion of the adjacent frame side element, and a securing element carried by each sleeve and engageable with the adjacent frame side element for holding said pair of arms in any select position of their movement.

JOHN W. WEISNER.

(References on following page) REFERENCES CITED Number Name Date Allen Apr. 19, 1904 Conez Mar. 21, 1905 Johnston May 30, 1911 Cornwall et a1. Nov. 25, 1919 Lancelot Oct. 9, 1928 Torson June 2, 1931 Pauly Oct. 25, 1932 Quisenberry Feb.. 13, 1934 Number Number I, Name Date Kehoe May 24,1935 Hutchings Sept. 22, 1936 Chamberlin et a1. Apr. 2, 1940 Clark et; a1 Sept. 2, 1941 Wittwer Nov. 10, 1942 Voris Dec. 11, 1945 Idle May 10,1949 Stanitz Mar. 6, 1951 FOREIGN PATENTS Country Date Great Britain Jan. 23, 1947 

